EP2703316B1 - Container assembly - Google Patents

Description

The present invention relates to a container assembly according to the preamble of claim 1. In particular, the container assembly according to the invention should be suitable to absorb, transport and / or store highly reactive chemical materials, especially those that attack metal, especially hydrofluoric acid.

Container arrangements of the type mentioned are used in many different ways. So they are used in so-called IBC (Intermediate Bulk Container), which include a pallet, an outer shell and an inner container. The outer shell is often made of metal, the range of wood or plastic, the inner container also made of metal or plastic. Such a container arrangement is for example in EP 1 826 138 A1 disclosed.

For the production of a variety of products is the provision of highly pure chemicals or highly reactive chemicals, which attack in particular metals, so aggressively acting on transport containers required. With regard to the materials to be used for the transport container, a large number of solutions relating to the material to be used, as a rule plastic, have been proposed for this purpose. So revealed the DE 199 24 650 A1 a device for storing and transporting chemicals, in particular of liquid, high-purity chemicals for the electrical industry, the a multi-shell inner container, the inner, filling material-side shell of a stabilizer-free high-density polyethylene (PE-HD) and at least one, the inner shell enclosing shell made of polyethylene and a metal-free transport device made of plastic. The container disclosed therein is produced by multilayer bubble extrusion or coextrusion.

JP 09-315485 A discloses a container suitable for washing silicone wafers with hydrofluoric acid and made of carbon fibers and a polyarylene sulfide resin (PAS resin). EP 1 159 131 B1 discloses a multilayered device for storing and transporting chemicals, particularly high purity liquid chemicals for the electronics industry, wherein the filling material side innermost layer of the device is made of a high density polyethylene free of antioxidants.

If a pallet comprehensive transport device for use for a container in particular for the transport and / or storage of materials, especially liquid materials, especially high purity chemicals, especially those that attack metals such as hydrofluoric acid, so it is important to ensure that the appropriate transport device as well as the recorded in this container is made of plastic.

The term plastic in the context of the present invention includes such plastics, which are made of a single plastic material, as well as plastics, which consist of two or three more plastic materials are produced. In addition, the plastic in the context of the present invention may have further additives, wherein additives are to be avoided, which react with high-purity chemicals, in particular metal attacking chemicals such as hydrofluoric acid or the like. For example, plasticizers, antioxidants, etc. may be present.

Since the transport device has a pallet, it is important that the container is securely received in the transport device. For this purpose, it is essential to produce a sufficiently slip-resistant and secure connection of the outer shell with the pallet.

It is therefore an object of the present invention to provide a transport device which provides a sufficiently secure, in particular slip-proof connection between an outer casing and a pallet.

This object is solved by the features of claim 1. According to the invention, the outer sheath is made of plastic, wherein the outer sheath has a bottom, which has on its surface facing the pallet at least one protruding retaining element, which engages in at least one arranged on an upper side of the pallet recess. By this intervention, a firm connection between outer container and pallet is preferably generated, preferably a non-positive and / or positive connection. Slippage is thus prevented, preferably, the connection is formed without play. In addition, the transport device according to the invention at least one fastening means made of plastic, which is arranged between the outer shell and the pallet.

The plastic is to be understood as defined in the introduction and may therefore consist of a single plastic material or a mixture of two or more plastic materials, optionally with other additives. For the inner container which can be inserted into the transport device, the plastic material of at least the filling material-side layer is advantageously selected from the group comprising polyethylenes and / or polypropylenes, preferably high-density polyethylenes. Particularly preferred are high-density polyethylenes, such as those in the DE 199 24 650 A1 and EP 1 159131 B1 are described.

Preferably, it is a high-density polyethylene (HDPE) having a specific gravity in a range of 0.940 to 0.970 g / cm ³ , more preferably in a range of 0.946 to 0.960 g / cm ³ free from stabilizers and / or antioxidants. The inner container is preferably formed in two or more layers, more preferably two or three layers, wherein at least the inside of the layer in contact with the material in contact therewith is made of said preferred plastic material. The inner container can therefore be constructed as a single layer.

For the outer jacket is preferably used as a plastic material, a high-density polyethylene (HDPE) having a specific gravity in a range of 0.940 to 0.970 g / cm ³ , more preferably in a range of 0.944 to 0.960 g / cm ³ , for example under the trademarks Lupolen 4261 AG UV 60005 of LyndonellBasell Industries NV, Rotterdam and Rigidex HM4560UA of INEOS Olefins & Polymers Europe, Rolle, Switzerland offered material at the time of filing this application. This may, but need not be, free from stabilizers and / or antioxidants. For the pallet, a high-density polyethylene (HDPE) having a specific gravity in a range from 0.940 to 0.970 g / cm ³ , more preferably in one, is preferably used as the plastic material Range from 0.944 to 0.960 g / cm ³ , for example, the material offered under the trademark Hostalen CD 7255 of LyndonellBasell Industries NV, Rotterdam at the time of filing this application. This may or may not be free from stabilizers and / or antioxidants.

The recess on the upper side of the pallet, which can also be addressed as a cover plate of the pallet, may have a bottom, but may also be formed as an opening, and thus as an opening in the upper side of the pallet. The recess is advantageously adapted in its contour to the protruding from the surface of the bottom of the outer shell retaining element, optionally taking into account an optional insertable between retaining element and recess wedge-shaped means. The recess can thus be addressed, for example, as an elongated recess or elongated opening at the top of the pallet. The holding element according to the present invention may be formed in any shape, but is preferably elongated with a quadrangular in side view embodiment, preferably a rectangular and transparent-like configuration, wherein a longitudinal side of the quadrangle or rectangle by the connection of the holding element to the surface of the Soil is formed.

In this case, viewed in cross-section, the side or transverse walls of the holding element inclined to each other advantageously be formed, so that a trapezoidal configuration, based on the cross-section results. The cross section is defined by a section along a plane passing through the two lateral or transverse walls of the retaining element, as far as they are elongated. In an also possible, for example, rod-shaped or frusto-conical or otherwise as radially symmetrical configuration of the holding elements, the cross section refers to a plane of symmetry extending through this. Advantageously, however, the holding elements are quadrangular with two opposite side walls and two shorter, also opposite transverse walls, which thus define the material thickness of the holding element, formed, and further preferably have a pointing in the direction of the pallet bottom. The Holding elements are preferably arranged between one or two-wall support elements of the pallet.

By engaging the at least one projecting retaining element of the outer shell in the recess on the top of the pallet on the one hand, a slip protection of the outer shell on the pallet mediated, and also provided a preferred non-positive or positive connection between the bottom of the outer shell with the pallet. The according to the invention between the outer shell and the pallet at least one fastening means is also made of a plastic. As plastic material for the fastener is advantageously a PE or HDPE, preferably the same HDPE as for outer shell or the pallet used.

Particularly preferably, at least one holding element is arranged substantially parallel to a longitudinal side of the outer casing on the surface of the bottom thereof. More preferably, this substantially parallel arrangement is at least slightly offset from the side walls towards the bottom center. Particularly preferably, at least one holding element arranged substantially parallel to a longitudinal side at the bottom of the outer casing is located in the region of the bottom center, preferably exactly centered on the surface of the bottom, relative to the two longitudinal sides of the outer casing. In this case, exactly two holding elements are particularly preferably arranged substantially parallel to a longitudinal side of the outer casing on the surface of the bottom thereof, more preferably, the two holding elements are exactly centered, as defined above, arranged on the surface of the soil. In a further preferred embodiment, the at least one substantially parallel to the longitudinal side arranged holding element in the region of a arranged in the bottom of the outer shell channel-shaped recess is arranged. The trough-shaped recess at the bottom of the outer shell allows a provision of a lower outlet of an inner shell to be housed in the outer shell, advantageously from the rear transverse wall to the front transverse wall with the outlet has a slope, more preferably also a slope from the longitudinal sides to the bottom center thereof, and still more preferably, a groove-shaped depression on the outlet. The channel-shaped depression in the bottom of the outer shell can be formed in its contour of the channel-shaped recess of the inner container, but it does not have to. A direct contact of the channel-shaped recess of the inner container with that of the outer jacket can take place, but it may also be in the particular unfilled state, a distance may be present, or only a partial support.

In a further preferred embodiment, at least one retaining element is arranged substantially parallel to a transverse side of the outer shell on the surface of the bottom thereof. The Front transverse side of the outer shell in this case has an opening for an outlet of an inner container to be received in the outer jacket, the rear transverse side, which is formed parallel to the front transverse side, however, is preferably formed over its entire surface without openings.

Preferably, the at least one retaining element arranged parallel to a transverse side on the upper side of the outer jacket is arranged offset from the transverse side to the surface of the base, that is to say, H. has a certain distance to the transverse side. Preferably, at least two, more preferably at least three, even more preferably at least four holding elements arranged substantially parallel to a transverse side on the surface of the bottom are provided on the surface of the bottom. Advantageously, the retaining elements arranged substantially parallel to a longitudinal side of the outer shell on the surface of the bottom are arranged in pairs in even numbers, for example in the provision of respectively two or four retaining elements. Pairwise arrangement in the sense of the present invention means that the holding elements lie in an identical plane extending through the longitudinal or transverse sides in the case of an angular formation of the holding elements. The same applies to a rotationally symmetrical design of the holding elements.

If the holding elements are rotationally symmetrical, they can not of course be defined as being arranged substantially parallel to a longitudinal or transverse side of the outer casing on the surface of the bottom. In this case, the rotationally symmetrical holding elements, that is, for example, cylindrical or frustoconical holding elements are slightly offset from the bottom center, d. H. spaced from the longitudinal and transverse sides of the outer shell, d. H. with a return to an edge formed between the longitudinal and transverse sides and bottom edge of the outer shell arranged. Preferably, these rotationally symmetrical holding elements are again arranged in pairs, as described above, and preferably also at least one, preferably at least two rotationally symmetrical holding elements in the region of the bottom center, more preferably at least one such rotationally symmetrical holding element in the region of a channel-shaped recess, which in the Floor of the outer shell is formed It can also be combined in side view square and rotationally symmetrical holding means.

In a particularly preferred embodiment, the transport device according to the invention arranged on the surface of the bottom of the outer shell at least one substantially parallel to a longitudinal side and at least one substantially parallel to a transverse side of the outer shell arranged holding element, in particular a polygonal, preferably quadrangular, even more preferably in Side view rectangular elongated trained holding element. Particularly preferably, the transport device according to the invention has a total of six holding elements, wherein all of these holding elements can also be arranged parallel to the longitudinal sides or to the transverse sides of the outer shell, as described above. However, particularly preferred are two or four holding elements arranged parallel to the front or rear transverse side of the outer shell on the surface of the bottom thereof, and arranged at least one, preferably two holding elements substantially parallel to the longitudinal sides of the outer shell on the pallet facing surface of the bottom.

According to the invention, at least one fastening means is arranged between the outer jacket and the pallet. The fastening means preferably comprises a helical means, more preferably a screw, more preferably the fastening means comprises a plate with a bore, and is suitable for receiving the helical means, in particular a screw. More preferably, the plate of the fastener engages in a recess at the top of the pallet. In an embodiment of the helical means as a screw, the screw is guided from the inside of the outer container through a bore provided in the outer container and engages over a thread present on the inside of the bore of the plate of the fastening means, so that the plate is in a recess of an upper side the pallet can engage, and applies sealingly with the head facing the screw head to the outside of the outer shell in the ground. For this purpose, the plate of the fastening means is advantageously designed such that it has a return facing the outside of the outer shell or the head of a helical means. As a result, an additional contact surface of the plate is provided on an underside of the pallet.

In a further preferred embodiment, the at least one holding element is arranged in the pallet by means of a wedge-shaped means. In this way, in particular a traction can be provided. The wedge-shaped means is preferably, viewed in cross-section, U-shaped, so that the holding element between the two legs of the "U" is receivable. In this case, preferably the area between the two legs of the U-shaped wedge-shaped means is formed with its contour of the outer contour of the holding element. The wedge-shaped means is preferably received between two provided by the pallet double-walled support elements, which provide a support surface for the outer shell with its top. The wedge-shaped means is preferably frictionally between the support elements, which may be formed not only double-walled, but also single-walled, added. Preferably, the holding element is in turn arranged non-positively or positively in the wedge-shaped means. Advantageously, wedge-shaped means are used in holding elements, which have an elongated design as defined above, more preferably in those which are arranged substantially parallel to the front or rear transverse side of the outer shell on the surface of the bottom of the outer shell.

As already mentioned above, preferably side walls of the at least one holding element are inclined relative to each other, in particular to form a trapezoidal

Cross-section in an elongated configuration of the holding element or for forming a truncated or cylindrical truncated cross-section in a rotationally symmetrical design of the holding element. A trapezoidal cross-section with elongate holding elements thus refers to a plane through both longitudinal side walls of the holding element. Advantageously, the at least one retaining element non-positively and / or positively a connection of the pallet with the outer shell available. More preferably, the at least one retaining element is formed integrally with the outer container. Advantageously, the outer shell is produced by bubble extrusion one, two, three or otherwise multi-layered, in particular together with a lid to complete the transport device, the lid then cut after the blowing process and then put back after potting an inner container and by welding or bolt on the upper frame the outer jacket is attached.

Preferably, the container assembly according to the invention has a lid, which is further preferably connectable to an upper frame of the outer shell.

The container assembly according to the invention can be made in the design features shown completely from a single plastic material, preferably a polyethylene, more preferably made of a high-density polyethylene, so that can be completely dispensed with metallic components or other plastic materials. In this case, the inventive construction of the transport device or container arrangement has a high degree of slip resistance and strength in itself by the provision of the holding elements on the pallet facing surface of the bottom of the outer shell.

Fig. 1:

eine perspektivische Ansicht einer erfindungsgemäßen Behälteranordnung mitsamt erfindungsgemäßer Transportvorrichtung;

Fig. 2:

eine Explosionsdarstellung der erfindungsgemäßen Transportvorrichtung;

Fig. 3:

eine Längsseitenansicht eines Außenmantels der erfindungsgemäßen Transportvorrichtung gemäß Fig. 2;

Fig. 4:

eine perspektivische Ansicht eines erfindungsgemäßen Außenmantels für die erfindungsgemäße Transportvorrichtung gemäß Fig. 2 vom Boden her;

Fig. 5:

eine Schnittansicht eines Befestigungsmittels für die erfindungsgemäße Transportvorrichtung;

Fig. 6:

eine Draufsicht auf das Befestigungsmittel gemäß Fig. 5;

Fig. 7:

eine Detailansicht eines Schnittes durch den Boden des Außenmantels und einer Palette der erfindungsgemäßen Transportvorrichtung mit diese verbindendem Befestigungsmittel gemäß den Fig. 5 und 6;

Fig. 8:

eine Schnittansicht parallel zu einer Längsseite des Außenmantels durch den Boden desselben als auch die Palette im Bereich eines parallel zu einer Längsseite des Außenmantels angeordneten Halteelementes; sowie

Fig. 9:

eine Schnittansicht wiederum in einer Ebene parallel zu den Längswänden des Außenmantels in einer Detailansicht mit dem Boden des Außenmantels und durch ein im Wesentlichen parallel zu der vorderen bzw. hinteren Querseite des Außenmantels angeordnetes Halteelement mit keilförmigen Mittel.

These further advantages of the invention will be explained in more detail with reference to the following figures. Show it:

Fig. 1:

a perspective view of a container assembly according to the invention together with inventive transport device;

Fig. 2:

an exploded view of the transport device according to the invention;

3:

a longitudinal side view of an outer shell according to the transport device according to the invention Fig. 2 ;

4:

a perspective view of an outer sheath according to the invention for the transport device according to the invention according to Fig. 2 from the ground;

Fig. 5:

a sectional view of a fastening means for the transport device according to the invention;

Fig. 6:

a plan view of the fastener according to Fig. 5 ;

Fig. 7:

a detailed view of a section through the bottom of the outer shell and a pallet of the transport device according to the invention with these connecting fastener according to the FIGS. 5 and 6 ;

Fig. 8:

a sectional view parallel to a longitudinal side of the outer shell through the bottom thereof as well as the pallet in the region of a parallel to a longitudinal side of the outer shell arranged holding element; such as

Fig. 9:

a sectional view in turn in a plane parallel to the longitudinal walls of the outer shell in a detailed view with the bottom of the outer shell and by a substantially parallel to the front and rear transverse side of the outer shell arranged holding element with wedge-shaped means.

First, it should be noted that the invention is not limited to the feature combinations shown in the figures. On the contrary, the features disclosed in the description including the description of the figures can be combined with the features indicated in the figures. In particular, the embodiment of the embodiments of the transport device or container arrangement according to the invention shown in the figures with a full-surface outer jacket is only one of the possible embodiments. It could, for example, rod-like or tubular grid-like jacket elements are used, as far as they are made entirely of plastic with sufficient strength. In addition, the configuration of the holding elements in the figures, which are there exclusively elongated to designate in a side view as rectangular, only one of the possible embodiments thereof. The holding elements could, for example, square in a side view or triangular, or rotationally symmetric, d. H. be frusto-conical or frustoconical, be formed. Finally, it should also be pointed out that the reference numbers included in the claims are in no way intended to limit the scope of the present invention, but merely refer to the embodiments shown in the figures.

Fig. 1 shows a generally designated by the reference numeral 11 container assembly and designated by the reference numeral 10 transport device comprising an inner container 16, received in an outer shell 14, this in turn arranged on a pallet 12, as well as a lid 18 which on an upper frame 26 of Outer jacket 14 is secured by means of plastic bolts. The inner container 16 has a central filling opening 40 and vent openings 42 and an outlet 44, tube-like design. The outlet 44 is guided in the region of an opening in a front transverse side 29.1 of the outer jacket 14. The transport device 10 comprises the outer casing 14, arranged on the pallet 12.

Fig. 2 shows in an exploded view, the arrangement of the transport device 10 with the outer shell 14 on the pallet 12. The outer shell 14 has the front transverse side 29.1 and a rear transverse side 29.2 (s. Fig. 4 ), as well as long sides 28.1 and 28.2 (s. Fig. 4 ) on. In the upper area he has the frame 26, which serves in particular to attach a lid to be optionally provided. The attachment is preferably carried out by welding, or via holes 43 through which plastic pins are used. Furthermore, the outer casing 14 has a bottom 20, wherein arranged on this bottom 20 are a total of four approximately rectangularly shaped holding elements 30, which extend parallel to the front or rear longitudinal side 29.1, 29.2 and the pairs, ie in a common plane parallel to the front and rear transverse side 29.1, 29.2 and spaced from the transverse sides 29.1, 29.2 are arranged on the center of the bottom 20 out. Furthermore, two further holding elements 32 are arranged on the bottom 20 on its surface 21, which faces the pallet 12 in an approximately rectangular configuration, but this time parallel to the side walls 28.1, 28.2 of the outer shell 14. Both holding elements 32 are also in pairs in a plane in the bottom center of the bottom 20, based on the longitudinal sides 28.1, 28.2, arranged. A retaining element 32 arranged approximately centrally on the surface 21 of the base 20 is arranged in the end region of a groove-shaped recess 24 which defines an opening 22 of the outer jacket 14. The groove-shaped recess 24 preferably takes on an outer contour of a corresponding formation of the bottom 20 of an inner shell 16 to be placed in the outer shell 14, and serves in particular for easier and more complete emptying of the material received in the inner container 16. The arranged in the region of the groove-shaped recess 24 holding member 32 is arranged at the opening 22 of the same opposite end of the groove-shaped recess 24.

The holding elements 30 have side walls 36.1 and 36.2 (s. Fig. 4 ) and transverse walls 37.1 and 37.2 (s. Fig. 4 ), wherein the transverse walls 37.1, 37.2 define the material thickness of the holding elements 30. The side walls 36.1, 36.2 have a side view of a substantially rectangular, elongated configuration. According to the holding elements 30, the holding elements 32 are formed.

The pallet 12 has an upper side 50, facing the surface 21 of the bottom 20 of the outer casing 14, as well as longitudinal sides 52.1, 52.2 and transverse sides 54.1. and 54.2, corresponding to the outer jacket 14, on. In this case, a recess 56 for receiving the channel-shaped recess 24 and the opening 22 of the outer shell 14 is formed in the front transverse side 54.1. The pallet 12 further comprises four corner feet 58.1, 58.2, 58.3 and 58.4, and center feet 60.1, 60.2, 60.3 and 60.4 respectively disposed therebetween. In addition, a central foot 61 is still arranged centrally on the pallet. The corner, middle and central feet together form three runners 62.1, 62.2 and 62.3, said runners on the longitudinal sides 52.1 and 52.2 of the pallet 12 have openings through which the fork can retract a forklift. However, the fork of a forklift can also drive in from the transverse sides 54.1 or 54.2 between the runners 62.1, 62.2.

In addition, shows Fig. 2 in explosion the arrangement of helical means 82, formed as screws, via holes 38 in the bottom 20 of the outer shell 14 and plates 84 which are arranged from the underside of the pallet 12, and in which the helical means 82 intervene. In total, four fasteners 80 (s. FIGS. 5 and 6 ), which are disposed near the corners of the outer shell 14 in the bottom 20 thereof.

Fig. 3 shows the outer shell 14 in a view from the longitudinal side 28.1, wherein the front transverse side 29.1 and the rear transverse side 29.2 are recognizable, as well as the upper frame 26. Also, the arrangement and design of parallel to the transverse sides 29.1, 29.2 at the bottom of the outer shell 14 arranged holding elements 30.1, 30.2, 30.3 and 30.4 and the parallel to the longitudinal sides 28.1 and 28.2 arranged holding elements 32.1 and 32.2 to recognize.

Fig. 4 shows the outer shell 14 in a view from the bottom 20 forth, so that well the arrangement of the holding elements 30.1, 30.2, 30.3 and 30.4 and 32.1 and 32.2 and the arrangement of the groove-shaped recess 24 can be seen.

Fig. 5 FIG. 14 shows the fastener 80 with a helical screwed means 82 and a plate 84. The plate 84 has a recess 85 towards the head of the helical means 82, so that a lower plate part 87 having a larger dimension and a smaller one , is formed on this overlying and the head of the helical means 82 associated plate member 86. The plate member 86 is in a recess 51, designed as a breakthrough, engageable in the top 50 of the pallet 12, as in Fig. 7 shown. The helical means 82 is guided from the inside of the outer jacket 14 through the bottom 20 thereof and a bore 38 arranged therein in the plate 84 and a bore 88 arranged there and fixedly connected by means of an internal thread arranged in the bore 88 of the plate 84. In this way, an application of the upper side of the smaller plate member 86 to the pallet 12 facing surface 21 of the outer shell 14. The larger plate portion 87 of the plate 84 in turn is at least partially with its surface on the underside of the pallet 12 at.

Fig. 8 shows the arrangement of a parallel to the side walls 28.1, 28.2 arranged on the bottom 20 of the outer shell 14 retaining element 32 in detail. The holding member 32 is in this section, as can be seen, elongated rectangular, wherein the transverse walls 37.1, 37.2 slightly inclined to each other. Likewise, the Längsseitenwandungen may have a corresponding inclination. The holding element 32 is received in a recess 64 on the upper side 50 of the pallet 12 between two single-wall support elements 68.1, 68.2, on which the outer casing 14 comes with its surface 21 for support over the tops 69.1 and 69.2 of the same. The two support elements 68.1, 68.2 are connected to each other via a web 74 of the pallet 12.

Fig. 9 shows now an alternative recording option for holding elements, in particular substantially parallel to the front or rear transverse sides 29.1, 29.2 extending holding elements 30. Here, the holding member 30 is seen in cross-section approximately trapezoidal due to an inclination of Longitudinal side walls 36.1, 36.2 of the same formed each other. Incidentally, the retaining element 30, seen from the side, elongated rectangular and arranged on the upper side 21 of the bottom 20 of the outer shell 14. The holding element 30 is received by a wedge-shaped means 70 in a recess 72 thereof. The wedge-shaped means 70 is formed in cross section in approximately U-shaped. The inclusion of the retaining element 30 in the recess 72 of the wedge-shaped means 70 is thereby form-fitting by adjusting the inner contour of the recess 72, the outer contour of the retaining element 30. The wedge-shaped means 70 in turn is between two double-walled support elements 66.1 and 66.2 of the pallet 12 added provide a top 67.1 and 67.2 for supporting the surface 21 of the bottom 20 of the outer shell 14 is available. The wedge-shaped element 70 is thereby frictionally received between side walls of the double-walled support elements 66.1 and 66.2, and is in particular all over the entire surface of the side surfaces of the support elements 66.1, 66.2. The longitudinal extent of the wedge-shaped means 70 does not have to cover the entire length of the holding element 30, but can also take place only over a partial length. Also, a plurality of wedge-shaped means can be provided for a holding element 30 or 32.

All in the Fig. 1 to 9 shown components of the container assembly according to the invention are made of plastic, preferably of an identical plastic, more preferably a high-density polyethylene, which is further preferably stabilizer and antioxidant-free. In this way, the container arrangement allows the transport of highly pure, in particular metals attacking chemicals, especially of hydrofluoric acid.

Claims (12)

1. Container assembly (11) comprising a transport device (10) for a container for transporting and/or storing materials, in particular liquids, and an inner container (16) made of plastic material, wherein
   the transport device (10) comprises a pallet (12) made of plastic material and an outer casing (14),
   characterized in that
   the outer casing (14) is made of plastic material and has a bottom (20), which on its surface (21) facing the pallet (12) has at least one holding element (30, 32) protruding from said surface, which engages in at least one recess (64) being disposed on a top (50) of the pallet (12), and wherein the transport device (10) has at least one fastening means (80) made of plastic material, which is disposed between outer casing (14) and pallet (12).
2. Container assembly (11) according to claim 1, characterized in that the transport device (10) has at least one holding element (30) with side walls (36.1, 36.2) and cross walls (37.1, 37.2), said transport device (10) being arranged parallel to a longitudinal side (28.1, 28.2) of the outer casing (14) on the surface (21) of the bottom (20).
3. Container assembly (11) according to one of the preceding claims, characterized in that the transport device (10) has at least one holding element (32) with side walls (36.1, 36.2) and cross walls (37.1, 37.2), said transport device (10) being arranged parallel to a transverse side (29.1, 29.2) of the outer casing (14) on the surface (21) of the bottom (20).
4. Container assembly (11) according to one of the preceding claims, characterized in that the transport device (10) has at least one holding element (30) with side walls (36.1, 36.2) and cross walls (37.1, 37.2) parallel to a longitudinal side (28.1, 28.2) and at least one holding element (32) with side walls (36.1, 36.2) and cross walls (37.1, 37.2) parallel to a transverse side (29.1, 29.2) of the outer casing (14) on the surface (21) of the bottom (20).
5. Container assembly (11) according to one of the claims 2 and 4, characterized in that the at least one holding element (32) with side walls (36.1, 36.2) and cross walls (37.1, 37.2) being disposed parallel to a longitudinal side (28.1, 28.2), is arranged in the area of a channel-shaped recess (24) of the outer casing (14) disposed in the bottom.
6. Container assembly (11) according to one or more of the preceding claims, characterized in that the fastening means (80) comprises a helical means (82).
7. Container assembly (11) according to one or more of the preceding claims, characterized in that the fastening means (80) comprises a plate (84) with a drill hole (88).
8. Container assembly (11) according to claim 7, characterized in that the plate (84) engages in a recess (51) in the top (50) of the pallet (12).
9. Container assembly (11) according to one of the preceding claims, characterized in that the holding element (30, 32) is arranged in the pallet (12) by a wedge-shaped means (70).
10. Container assembly (11) according to one of the preceding claims, characterized in that the side walls (36.1, 36.2) of the holding element (30, 32) are inclined to one another.
11. Container assembly (11) according to one of the preceding claims, characterized in that the at least one holding element (30, 32) provides a connection of the pallet (12) with the outer casing (14) in a force-fitting or form-fitting manner.
12. Container assembly (11) according to one of the preceding claims, characterized in that the at least one holding element (30, 32) is formed in one piece with the outer casing (14).

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